A5028271857- Advanced MRI Techniques and Applications
- Advanced Neuroimaging Techniques and Applications
- Cardiac Imaging and Diagnostics
- Atomic and Subatomic Physics Research
- MRI in cancer diagnosis
- Medical Imaging Techniques and Applications
- Ultrasound Imaging and Elastography
- Functional Brain Connectivity Studies
- Photoacoustic and Ultrasonic Imaging
- Organic Electronics and Photovoltaics
- Electron Spin Resonance Studies
- Organic Light-Emitting Diodes Research
- Prostate Cancer Diagnosis and Treatment
- Advanced Memory and Neural Computing
- Advanced X-ray Imaging Techniques
- Photochemistry and Electron Transfer Studies
- Data Visualization and Analytics
- Advanced X-ray and CT Imaging
- Chemotherapy-induced cardiotoxicity and mitigation
- Advanced Electron Microscopy Techniques and Applications
- ECG Monitoring and Analysis
- Mass Spectrometry Techniques and Applications
- Optical Coherence Tomography Applications
- Catalytic Cross-Coupling Reactions
- Cell Image Analysis Techniques
Mayo Clinic in Arizona
2021-2024
Mayo Clinic
2020-2024
WinnMed
2024
National Tsing Hua University
2009-2020
National Cheng Kung University
2013-2018
Harvard University
2009-2011
Brigham and Women's Hospital
2009-2011
National Taiwan University
2005-2009
Institute of Atomic and Molecular Sciences, Academia Sinica
2009
National Synchrotron Radiation Research Center
2009
A series of novel materials based on bi(9,9-diaryfluorene)s are the first examples pure aromatic hydrocarbons as potential UV emitters in organic light-emitting devices (OLEDs). The Figure, photographed a normal lighting environment, shows strong red, green, and blue emission from corresponding fluorescent dye solutions pumped by OLED this work, demonstrating OLED, its pumping capability.
<h3>BACKGROUND AND PURPOSE:</h3> Quantitative susceptibility mapping of the human brain has demonstrated strong potential in examining iron deposition, which may help investigating possible pathology. This study assesses reproducibility quantitative across different imaging sites. <h3>MATERIALS METHODS:</h3> In this study, values 5 regions interest were measured on 9 healthy subjects following calibration by using phantom experiments. Each was imaged times 1 scanner with same procedure...
Abstract Aims Radiation therapy (RT) is an integral component of cancer but associated with adverse events. Our goal was to establish risk prediction models for major cardiovascular and cerebrovascular events (MACCE) after chest RT. Methods results A retrospective study lung/breast patients who had RT planning CT at Mayo Clinic between 01/2010 01/2014. Predictive were developed based on weighted independent predictors using a derivation (406 lung 711 breast cancer) validation cohort (179 234...
Abstract We propose an approach to visualizing the scientific world and its evolution by constructing minimum spanning trees (MSTs) a two‐dimensional map of journals using database Science Citation Index (SCI) during 1994–2001. The structures constructed MSTs are consistent with sorting SCI categories. science is based on our MST results. Such shows relation among various knowledge clusters their citation properties. temporal can also be delineated in map. In particular, this clearly linear...
An efficient method to identify whether mild cognitive impairment (MCI) has progressed Alzheimer’s disease (AD) will be beneficial patient care. Previous studies have shown that magnetic resonance imaging (MRI) enabled the assessment of AD progression based on findings. The present work aimed establish an algorithm three features, namely, volume, surface area, and curvature within hippocampal subfields, model variations, including atrophy structural changes cortical surface. In this study, a...
By means of time-resolved photoluminescence and photothermal techniques, after-effects from excited-state dynamics, energy migration, conformational rearrangement poly(9,9-di-n-octyl-2,7-fluorene) (PFO) its homologues has been examined interpreted with rotational potential maps quantum mechanical calculations. Steady-state spectral changes measurements oligofluorenes PFO diluted in toluene suggest excited state ring torsion occurring within 30 ps photoexitation. With all effects internal...
Abstract As the number and complexity of partially sampled dynamic imaging methods continue to increase, reliable strategies evaluate performance may prove most useful. In present work, an analytical framework given reconstruction is presented. A perturbation algorithm allows proposed evaluation scheme perform robustly without requiring knowledge about inner workings method being evaluated. main output process consists a two‐dimensional modulation transfer function, easy‐to‐interpret visual...
Purpose To reduce image distortion in MR diffusion imaging using an accelerated multi‐shot method. Methods The proposed method exploits the fact that diffusion‐encoded data tend to be sparse when represented k b ‐k d space, where and are Fourier transform duals of , ‐factor direction, respectively. Aliasing artifacts displaced toward under‐used regions plane, allowing nonaliased signals recovered. A main characteristic approach is how thoroughly navigator information gets used during...
Purpose The aim of this study was to improve the geometric fidelity and spatial resolution multi-b diffusion-weighted magnetic resonance imaging prostate. Materials Methods An accelerated segmented diffusion sequence developed evaluated in 25 patients undergoing multiparametric examinations A reduced field view acquired using an endorectal coil. number sampled weightings, or b -factors, increased allow estimation tissue perfusion based on intravoxel incoherent motion (IVIM) model. Apparent...
Purpose High angular resolution diffusion imaging (HARDI) is a well‐established method to help reveal the architecture of nerve bundles, but long scan times and geometric distortions inherent echo planar (EPI) have limited its integration into clinical protocols. Methods A fast proposed here that combines accelerated multishot (AMDI), multiplexed sensitivity encoding (MUSE), crossing fiber intravoxel structure (CFARI) reduce spatial total time. EPI sequence was used improve geometrical...
To show that the acoustic noise of spiral MRI can be reduced by derating gradients with minimal penalty to image quality and scan time, illustrate an algorithm for optimal choice parameters.Acoustic level was measured compared various values maximum gradient amplitude slew rate T1 -weighted spin-echo scans while maintaining contrast, FOV resolution, readout time. A full trajectory a derated (undersampled) were chosen volunteer followed parallel imaging-aided reconstruction comparable SNR....
Operation characteristics of polycrystalline germanium (poly-Ge) tri-gate junctionless (JL) charge-trapping (CT) flash memory devices with stacked tunneling layer were studied in this work. The programming speeds poly-Ge JL device GeO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">x</sub> /Al xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> O xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> /SiO are faster than those or ones, thanks to the...
Purpose: Imaging of midbrain nuclei using T 2‐ or 2*‐weighted MRI often entails long echo time, leading to scan time. In this study, an inverse double‐echo steady‐state (iDESS) technique is proposed for efficiently depicting nuclei. Methods: Thirteen healthy subjects participated in study. iDESS was performed along with two sets spoiled gradient‐echo images (SPGR1, time identical and SPGR2, clinical scanning parameters as a reference standard) comparison. Generation composite combining...
Robust implementation of spiral imaging requires efficient deblurring. A deblurring method was previously proposed to separate and deblur water fat simultaneously, based on image-space kernel operations. The goal this work is improve the performance previous using kernels with better properties.Four types were formed different models for region outside collected k-space as well low-pass preconditioning (LP). performances tested compared both phantom volunteer data. Data also synthesized...
Motivation: Water-fat separated (WFS) imaging can improve detection and characterization of various cardiovascular pathologies. We hypothesize that the signal phase at half repetition time balanced steady-state free precession (bSSFP) may be used for efficient WFS cine imaging. Goal(s): To study feasibility free-running 3D cardiac using phase-sensitive approach. Approach: After reconstruction 5D whole heart images, global slowly varying was estimated removed. Water fat voxels were then...
Motivation: A gated 3D cardiac cine MRI will be useful to evaluate structure and function from different viewing angles, unlike conventional 2D scans covering only specific orientations. Goal(s): To develop a retrospectively imaging sequence for the scan with reasonable breath-hold time reconstruction speed. Approach: bSSFP was combined Localized Quadratic Encoding RF pulses imaging. Results: The requires around 20 breath-holds each takes 25 seconds. images feature similar soft tissue...
Motivation: Water/fat separation can be helpful to better distinguish adipose tissue, blood and myocardium in a cardiac cine series. However, inclusion of multi-echo acquisition the conventional bSSFP sequence introduce artifacts reduce temporal efficiency. Goal(s): To develop fast robust water/fat method for time-resolved imaging. Approach: A spoiled gradient echo with spiral is proposed perform retrospectively gating. Results: The image from has shorter scan time, lower artifact level RF...